| Atish Patra | cb7d2dd | 2020-09-17 15:37:13 -0700 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* |
| 3 | * Copyright (C) 2020 Western Digital Corporation or its affiliates. |
| 4 | * Adapted from arch/arm64/kernel/efi-header.S |
| 5 | */ |
| 6 | |
| 7 | #include <linux/pe.h> |
| 8 | #include <linux/sizes.h> |
| 9 | |
| 10 | .macro __EFI_PE_HEADER |
| 11 | .long PE_MAGIC |
| 12 | coff_header: |
| 13 | #ifdef CONFIG_64BIT |
| 14 | .short IMAGE_FILE_MACHINE_RISCV64 // Machine |
| 15 | #else |
| 16 | .short IMAGE_FILE_MACHINE_RISCV32 // Machine |
| 17 | #endif |
| 18 | .short section_count // NumberOfSections |
| 19 | .long 0 // TimeDateStamp |
| 20 | .long 0 // PointerToSymbolTable |
| 21 | .long 0 // NumberOfSymbols |
| 22 | .short section_table - optional_header // SizeOfOptionalHeader |
| 23 | .short IMAGE_FILE_DEBUG_STRIPPED | \ |
| 24 | IMAGE_FILE_EXECUTABLE_IMAGE | \ |
| 25 | IMAGE_FILE_LINE_NUMS_STRIPPED // Characteristics |
| 26 | |
| 27 | optional_header: |
| 28 | #ifdef CONFIG_64BIT |
| 29 | .short PE_OPT_MAGIC_PE32PLUS // PE32+ format |
| 30 | #else |
| 31 | .short PE_OPT_MAGIC_PE32 // PE32 format |
| 32 | #endif |
| 33 | .byte 0x02 // MajorLinkerVersion |
| 34 | .byte 0x14 // MinorLinkerVersion |
| 35 | .long __pecoff_text_end - efi_header_end // SizeOfCode |
| 36 | .long __pecoff_data_virt_size // SizeOfInitializedData |
| 37 | .long 0 // SizeOfUninitializedData |
| 38 | .long __efistub_efi_pe_entry - _start // AddressOfEntryPoint |
| 39 | .long efi_header_end - _start // BaseOfCode |
| 40 | #ifdef CONFIG_32BIT |
| 41 | .long __pecoff_text_end - _start // BaseOfData |
| 42 | #endif |
| 43 | |
| 44 | extra_header_fields: |
| 45 | .quad 0 // ImageBase |
| 46 | .long PECOFF_SECTION_ALIGNMENT // SectionAlignment |
| 47 | .long PECOFF_FILE_ALIGNMENT // FileAlignment |
| 48 | .short 0 // MajorOperatingSystemVersion |
| 49 | .short 0 // MinorOperatingSystemVersion |
| 50 | .short LINUX_EFISTUB_MAJOR_VERSION // MajorImageVersion |
| 51 | .short LINUX_EFISTUB_MINOR_VERSION // MinorImageVersion |
| 52 | .short 0 // MajorSubsystemVersion |
| 53 | .short 0 // MinorSubsystemVersion |
| 54 | .long 0 // Win32VersionValue |
| 55 | |
| 56 | .long _end - _start // SizeOfImage |
| 57 | |
| 58 | // Everything before the kernel image is considered part of the header |
| 59 | .long efi_header_end - _start // SizeOfHeaders |
| 60 | .long 0 // CheckSum |
| 61 | .short IMAGE_SUBSYSTEM_EFI_APPLICATION // Subsystem |
| 62 | .short 0 // DllCharacteristics |
| 63 | .quad 0 // SizeOfStackReserve |
| 64 | .quad 0 // SizeOfStackCommit |
| 65 | .quad 0 // SizeOfHeapReserve |
| 66 | .quad 0 // SizeOfHeapCommit |
| 67 | .long 0 // LoaderFlags |
| 68 | .long (section_table - .) / 8 // NumberOfRvaAndSizes |
| 69 | |
| 70 | .quad 0 // ExportTable |
| 71 | .quad 0 // ImportTable |
| 72 | .quad 0 // ResourceTable |
| 73 | .quad 0 // ExceptionTable |
| 74 | .quad 0 // CertificationTable |
| 75 | .quad 0 // BaseRelocationTable |
| 76 | |
| 77 | // Section table |
| 78 | section_table: |
| 79 | .ascii ".text\0\0\0" |
| 80 | .long __pecoff_text_end - efi_header_end // VirtualSize |
| 81 | .long efi_header_end - _start // VirtualAddress |
| 82 | .long __pecoff_text_end - efi_header_end // SizeOfRawData |
| 83 | .long efi_header_end - _start // PointerToRawData |
| 84 | |
| 85 | .long 0 // PointerToRelocations |
| 86 | .long 0 // PointerToLineNumbers |
| 87 | .short 0 // NumberOfRelocations |
| 88 | .short 0 // NumberOfLineNumbers |
| 89 | .long IMAGE_SCN_CNT_CODE | \ |
| 90 | IMAGE_SCN_MEM_READ | \ |
| 91 | IMAGE_SCN_MEM_EXECUTE // Characteristics |
| 92 | |
| 93 | .ascii ".data\0\0\0" |
| 94 | .long __pecoff_data_virt_size // VirtualSize |
| 95 | .long __pecoff_text_end - _start // VirtualAddress |
| 96 | .long __pecoff_data_raw_size // SizeOfRawData |
| 97 | .long __pecoff_text_end - _start // PointerToRawData |
| 98 | |
| 99 | .long 0 // PointerToRelocations |
| 100 | .long 0 // PointerToLineNumbers |
| 101 | .short 0 // NumberOfRelocations |
| 102 | .short 0 // NumberOfLineNumbers |
| 103 | .long IMAGE_SCN_CNT_INITIALIZED_DATA | \ |
| 104 | IMAGE_SCN_MEM_READ | \ |
| 105 | IMAGE_SCN_MEM_WRITE // Characteristics |
| 106 | |
| 107 | .set section_count, (. - section_table) / 40 |
| 108 | |
| 109 | .balign 0x1000 |
| 110 | efi_header_end: |
| 111 | .endm |